Showing no sign of his marital woes, Hollywood star Michael Douglas looks tanned and relaxed at the opening ceremony of the 39th ­Deauville American Film Festival.

In fact the Oscar-winning actor says he’s confident he’ll be able to patch things up with ­estranged wife Catherine Zeta Jones, 43.

Asked if he thought there was a chance they could work out their ­differences, he replied: “Of course.”

Still wearing his wedding ring, Douglas, 68, was in the chic French resort to promote his film, Behind the Candelabra, in which he stars as flamboyantly gay pianist Liberace.

Talking of the split with his wife of 13 years – friends say they have lived separate lives for 18 months – he said: “People have been kindly asking how I’m doing. Well I put on a suit tonight, one I can’t come close to buttoning, so everything must be OK.”

He has been on holiday alone in Sardinia while Catherine is in New York with their children Dylan, 12, and Carys Zeta, nine.